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+# Canonicalize commit/co-author identities for git shortlog, blame, and
+# the GitHub contributors graph (all honor .mailmap).
+#
+# A few early commits carried a `Co-Authored-By: Claude … <noreply@anthropic.com>`
+# trailer (Claude Code attribution, since disabled). The human author is
+# the maintainer; fold that co-author identity into the canonical one so
+# tooling does not list a spurious "claude" contributor. No history is
+# rewritten — this only affects how identities are displayed.
+Hirokazu Yoshinaga <4027404+hyoshi@users.noreply.github.com> <noreply@anthropic.com>